88 lines
2.3 KiB
C
88 lines
2.3 KiB
C
/* -*- Mode: C; tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*- */
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include <memcached/extension.h>
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#include <memcached/extension_loggers.h>
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#include <memcached/engine.h>
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static EXTENSION_LOG_LEVEL current_log_level = EXTENSION_LOG_WARNING;
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SERVER_HANDLE_V1 *sapi;
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static const char *stderror_get_name(void) {
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return "standard error";
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}
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static void stderror_logger_log(EXTENSION_LOG_LEVEL severity,
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const void* client_cookie,
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const char *fmt, ...)
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{
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if (severity >= current_log_level) {
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(void)client_cookie;
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int len = strlen(fmt);
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bool needlf = (len > 0 && fmt[len - 1] != '\n');
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va_list ap;
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va_start(ap, fmt);
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vfprintf(stderr, fmt, ap);
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va_end(ap);
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if (needlf) {
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fprintf(stderr, "\n");
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}
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fflush(stderr);
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}
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}
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static EXTENSION_LOGGER_DESCRIPTOR stderror_logger_descriptor = {
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.get_name = stderror_get_name,
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.log = stderror_logger_log
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};
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static void on_log_level(const void *cookie,
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ENGINE_EVENT_TYPE type,
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const void *event_data,
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const void *cb_data) {
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if (sapi != NULL) {
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current_log_level = sapi->log->get_level();
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}
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}
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EXTENSION_ERROR_CODE memcached_initialize_stderr_logger(GET_SERVER_API get_server_api) {
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sapi = get_server_api();
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if (sapi == NULL) {
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return EXTENSION_FATAL;
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}
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current_log_level = sapi->log->get_level();
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sapi->callback->register_callback(NULL, ON_LOG_LEVEL,
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on_log_level, NULL);
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return EXTENSION_SUCCESS;
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}
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static const char *null_get_name(void) {
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return "/dev/null";
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}
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static void null_logger_log(EXTENSION_LOG_LEVEL severity,
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const void* client_cookie,
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const char *fmt, ...)
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{
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(void)severity;
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(void)client_cookie;
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(void)fmt;
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/* EMPTY */
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}
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static EXTENSION_LOGGER_DESCRIPTOR null_logger_descriptor = {
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.get_name = null_get_name,
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.log = null_logger_log
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};
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EXTENSION_LOGGER_DESCRIPTOR* get_null_logger(void) {
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return &null_logger_descriptor;
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}
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EXTENSION_LOGGER_DESCRIPTOR* get_stderr_logger(void) {
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return &stderror_logger_descriptor;
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}
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